Quality Indicator 6: Language differences

Prefer IRIs over literals

If something can be denoted by either a literal or an IRI, the latter is preferred. For example, when a dataset already contains an IRI that denotes the city of Amsterdam, it is a data quality issue when the same city is also referred to by the literal "Amsterdam"^^xsd:string.

The following table shows how many languages are denoted by IRIs (from Lexvo) versus those that are denoted by literals.

The following table enumerates the items whose languages are denoted by literals, even though Lexvo IRIs are already used (and preferred) for representing these languages.